Antonyms for the word "homing in on" can include words that denote the opposite action, such as "moving away from," "losing track of," and "straying from." Other antonyms might include phrases that describe a lack of focus or aim, such as "wandering aimlessly," "being unfocused," or "not having a clear objective." Additionally, antonyms for "homing in on" might include words that imply a lack of interest or attention, such as "ignoring," "neglecting," and "overlooking." Overall, these antonyms highlight the importance of focus, attention, and intent when trying to achieve a particular goal or outcome.